blkdev_ioctl+0x44e/0x6d0 block/ioctl.c:688
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:598 [inline]
 __se_sys_ioctl fs/ioctl.c:584 [inline]
 __x64_sys_ioctl+0x18b/0x210 fs/ioctl.c:584
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
------------[ cut here ]------------
kernel BUG at mm/filemap.c:867!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 9838 Comm: syz.3.1662 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__filemap_add_folio+0xf5b/0x11e0 mm/filemap.c:867
Code: 77 c8 ff 48 c7 c6 60 24 b9 8b 4c 89 ef e8 9d 28 11 00 90 0f 0b e8 a5 77 c8 ff 48 c7 c6 c0 24 b9 8b 4c 89 ef e8 86 28 11 00 90 <0f> 0b e8 8e 77 c8 ff 90 0f 0b 90 e9 f2 fb ff ff e8 80 77 c8 ff 48
RSP: 0018:ffffc9000455f460 EFLAGS: 00010246
RAX: 0000000000080000 RBX: 0000000000000000 RCX: ffffc9000d27c000
RDX: 0000000000080000 RSI: ffffffff81f3173a RDI: ffff888025e32884
RBP: 0000000000112c00 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff90ab6b97 R11: 0000000000000000 R12: 0000000000000002
R13: ffffea0001f1a280 R14: 0000000000000000 R15: 000000000002c928
FS:  00007fdea81d56c0(0000) GS:ffff8881246b5000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556fa51808 CR3: 000000007a8c7000 CR4: 00000000003526f0
DR0: 0000000000009000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 filemap_add_folio+0x10e/0x220 mm/filemap.c:969
 ra_alloc_folio mm/readahead.c:448 [inline]
 page_cache_ra_order+0x5a7/0xd70 mm/readahead.c:506
 do_sync_mmap_readahead mm/filemap.c:3304 [inline]
 filemap_fault+0x152e/0x2930 mm/filemap.c:3445
 __do_fault+0x10d/0x490 mm/memory.c:5152
 do_read_fault mm/memory.c:5573 [inline]
 do_fault mm/memory.c:5707 [inline]
 do_pte_missing+0xf50/0x3ba0 mm/memory.c:4234
 handle_pte_fault mm/memory.c:6052 [inline]
 __handle_mm_fault+0x152a/0x2a50 mm/memory.c:6195
 handle_mm_fault+0x589/0xd10 mm/memory.c:6364
 faultin_page mm/gup.c:1144 [inline]
 __get_user_pages+0x551/0x34a0 mm/gup.c:1446
 populate_vma_page_range+0x267/0x3f0 mm/gup.c:1880
 __mm_populate+0x1d8/0x380 mm/gup.c:1983
 mm_populate include/linux/mm.h:3367 [inline]
 vm_mmap_pgoff+0x37f/0x470 mm/util.c:585
 ksys_mmap_pgoff+0x32c/0x5c0 mm/mmap.c:604
 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:89 [inline]
 __se_sys_mmap arch/x86/kernel/sys_x86_64.c:82 [inline]
 __x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:82
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdea9f8ebe9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fdea81d5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fdeaa1c6090 RCX: 00007fdea9f8ebe9
RDX: 0000000001000002 RSI: 0000000000b36000 RDI: 0000200000000000
RBP: 00007fdeaa011e19 R08: 0000000000000004 R09: 000000002c93a000
R10: 0000000000028011 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fdeaa1c6128 R14: 00007fdeaa1c6090 R15: 00007fffa2989508
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0xf5b/0x11e0 mm/filemap.c:867
Code: 77 c8 ff 48 c7 c6 60 24 b9 8b 4c 89 ef e8 9d 28 11 00 90 0f 0b e8 a5 77 c8 ff 48 c7 c6 c0 24 b9 8b 4c 89 ef e8 86 28 11 00 90 <0f> 0b e8 8e 77 c8 ff 90 0f 0b 90 e9 f2 fb ff ff e8 80 77 c8 ff 48
RSP: 0018:ffffc9000455f460 EFLAGS: 00010246
RAX: 0000000000080000 RBX: 0000000000000000 RCX: ffffc9000d27c000
RDX: 0000000000080000 RSI: ffffffff81f3173a RDI: ffff888025e32884
RBP: 0000000000112c00 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff90ab6b97 R11: 0000000000000000 R12: 0000000000000002
R13: ffffea0001f1a280 R14: 0000000000000000 R15: 000000000002c928
FS:  00007fdea81d56c0(0000) GS:ffff8881247b5000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32404ff8 CR3: 000000007a8c7000 CR4: 00000000003526f0
DR0: 0000000000009000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400